Einstein-Podolsky-Rosen Paradox in Quantum Diagrams

TL;DR

This paper demonstrates that quantum diagrams can visually clarify the Einstein-Podolsky-Rosen paradox, showing that quantum correlations at a distance have simple causal explanations consistent with physical principles.

Contribution

It introduces a diagrammatic approach to understanding EPR correlations, providing clear visual insights into the causal and local explanations of quantum entanglement.

Findings

Quantum diagrams reveal the physical process behind EPR correlations.

Entangled states are shown to be causally explained within the diagrams.

Violations of Bell inequality are understood through phase relations in diagrams.

Abstract

Quantum diagrams are the best language for Quantum Mechanics since they show not only a final result but also the physical process which leads to the result. The quantum correlation at a distance better known as the Einstein-Podolsky-Rosen paradox may be easily understood being depicted in the time-ordered quantum diagrams. In the diagrams one can clearly see what the so-called entangled quantum states really are and how they contribute to the violation of Bell inequality. The wave function phase relations that are the actual physical "common cause in the past" for the observed correlation become also visual and evident. Thus the diagram analysis shows that the phenomenon of distant quantum correlation has simple causal and local explanation and there is no need to invent various extravagant constructions contradicting the established physical principles as well as usual common sense considerations.